SHELTON, Conn. (AP) — Connecticut officials are offering a $50,000 reward for information about the unsolved killing of a 15-year-old boy in Shelton.

Ansonia-Milford State’s Attorney Kevin Lawlor announced the reward Thursday in the case of Kristjan Ndoj. He said Gov. Dannel P. Malloy approved his request for the money, which will be awarded for information leading to the killer’s arrest and conviction.

The Shelton High School sophomore and Albania native was shot in the head and leg in the driveway of a friend’s home in March and died five days later. His family is pleading for people to come forward with information about the shooting.

Police have said they were investigating numerous tips, including reports that Ndoj was threatened before being shot.